We’ll have to wait a bit longer to find out if director Emmett Malloy’s planned Nick Drake documentary comes to fruition, but in the meantime, his latest project looks like a promising follow-up to 2009’s The White Stripes: Under Great White Northern Lights. Remember the Railroad Revival Tour, which featured folk-rock troupes Mumford & Sons, Edward Sharpe and the Magnetic Zeros, and the Old Crow Medicine Show traveling to perform at various American venues from Oakland to New Orleans via train? Well, Malloy was there to capture footage of the event on video, resulting in a new documentary that will make its world premiere at the SXSW Festival in Austin, TX next month.

“Bound for glory” being an allusion to folk pioneer Woody Guthrie, of course, not to mention the trio of bands’ collective take on the song “This Trains Is Bound for Glory” we saw in this awesome video clip last spring. No trailer or further release info is available at this time, but we’ll keep you posted when new details arrive. Update: Here’s the trailer…